Published June 1988
| Version v1
Journal article
Chemical state of tellurium in a degraded LWR core
Description
Changes of the chemical state of tellurium in the heatup stage of a severe fuel damage accident are estimated thermodynamically. According to equilibrium calculations with the SOLGASMIX-PV code, tellurium exists as cesium telluride, as the element or possibly as PdTe during normal operation. In the heatup stage of an accident, elemental tellurium is absorbed in the Zircaloy cladding by formation of ZrTex (x=1-2). Cesium telluride does not react with Zr even under the low oxygen potentials favoring the Zr/UO2 reaction. Tellurium is also absorbed in oxygen-stabilized alpha-zirconium. The stability of Cs2Te in the steam/hydrogen atmosphere is discussed. (orig.)
Additional details
Publishing Information
- Journal Title
- J. Nucl. Mater.
- Journal Volume
- 154
- Journal Issue
- 1
- Series
- J. Nucl. Mater.
- Journal Page Range
- 62-66
- ISSN
- 0022-3115
- CODEN
- JNUMA
Conference
- Title
- US-Japan joint seminar on the high-temperature chemistry of current light-water reactors and of advanced all-metal reactors.
- Dates
- 8-12 Jun 1987.
- Place
- Tokyo (Japan).
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 19093362
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- CESIUM TELLURIDES; CHEMICAL REACTIONS; CHEMICAL STATE; EQUILIBRIUM; FUEL ELEMENT FAILURE; HEATING; HIGH TEMPERATURE; HYDROGEN; LATTICE PARAMETERS; OXYGEN POTENTIAL; PALLADIUM TELLURIDES; REACTOR CORES; STABILITY; STEAM; TELLURIUM; TEMPERATURE DEPENDENCE; TIN TELLURIDES; URANIUM DIOXIDE; VAPOR PRESSURE; VERY HIGH TEMPERATURE; WATER COOLED REACTORS; WATER MODERATED REACTORS; ZIRCONIUM TELLURIDES; ZIRCONIUM-ALPHA
- Descriptors DEC
- ACCIDENTS; ACTINIDE COMPOUNDS; ALKALI METAL COMPOUNDS; CESIUM COMPOUNDS; CHALCOGENIDES; ELEMENTS; ENERGY; FREE ENTHALPY; METALS; NONMETALS; OXIDES; OXYGEN COMPOUNDS; PALLADIUM COMPOUNDS; PHYSICAL PROPERTIES; REACTOR ACCIDENTS; REACTOR COMPONENTS; REACTORS; SEMIMETALS; TELLURIDES; TELLURIUM COMPOUNDS; THERMODYNAMIC PROPERTIES; TIN COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS; URANIUM COMPOUNDS; URANIUM OXIDES; ZIRCONIUM; ZIRCONIUM COMPOUNDS